Electricity and Circuits: Complex Circuits - 无忧得胜-网上国际课程 (5edu.win)

1#

94.28: Four identical lighy, /ombq+hcj;tbulbs K, L, M, and N are connected in the electrical circuit shown in the acc/y qjh ;bmo,+companying figure. In order of decreasing brightness (starting with the brightest), the bulbs are:

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

98.27: Four identical lightbulbs K, L, M, and N are connected in th)bzzwa,,wxk fu5c6t +e electrical circuit shown in the accompanyinzxc b,u6fw ,z5twa )k+g diagram. Rank the current through the bulbs.

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

96.37: Four identical lightbulbs K,h2lh d)s dx)0 vhyoq+5*z cy.j L, M, and N are connected in the electrical circuit shoo. dh5zcv)0d+lyy ) 2hjx h*qswn in the accompanying figure. Bulb M burns out. Which of the following statements is true?

A. All the lightbulbs go out.

B. Only bulb M goes out.

C. Bulb N goes out but at least one other bulb remains lit.

D. The brightness of bulb N remains the same.

E. Bulb N becomes dimmer but does not go out.

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

95.32: Four identical lightbulbs K, L, M, and N72zf rrbja 9nmk6/pz chy0 e;+ )/mzgi are connected in the electrical circuit shown in the a mc7kr y nrbgp60 i);+ ez/zjh2m9f/azccompanying figure. Bulb K burns out. Which of the following statements is true?

A. All the lightbulbs go out.

B. Only bulb N goes out.

C. Bulb N becomes brighter.

D. The brightness of bulb N remains the same.

E. Bulb N becomes dimmer but does not go out.

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.21: Five identical lig9ju00 y k5jlkgvv/c; /cf(l olht bulbs each, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batt0/loyv u(k0lk cvgjj /cf;5 l9ery as shown in the diagram below.
The steady current in the above circuit would be closest to which of the following values?

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.22: Five identical light bulbs eaj, t lg e. 8n/.eeagwz-uo52djch, with a resistance of 10 ohms, are connected in a simple electrical circuit with a switch and a 10 volt batt-2 eute5jwo l8n.e.z gd, /ajgery as shown in the diagram below.
Which bulb (or bulbs) could burnout without causing other bulbs in the circuit to also go out?

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

04.39: The circuit shoc +b7+vxenz2 y) kva(lwn has an ideal ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the electrical circuit at that point. Which statement is true of the circuit after removing ten+( yx 7k)cz2lva +bvhe bulb?

A. The voltage from B → C increases.

B. The power supplied by the battery increases

C. The voltage across R1 increases.

D. The ammeter reading is unchanged.

E. The bulb R2 maintains the same brightness.

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

05.37: For the circuit shown,kww( 5z)agy .o a shorting wire of negligible resistance is added to the circuit between points A and B. When this shorting wire is added, bul okww5)azg (.yb #3 goes out. Which bulbs (all identical) in the circuit brighten?

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

09.26: For the circuit shown, when a shorting wire (no resistance) connectsh(6;r) x c2c srqbxy;g the points labeled A and B, which of the numbered lightbulbs become br;rcxr2 s)(6bgyqh;c xighter? Assume that all four bulbs are identical and have resistance R.

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.35: A circuit is connected as s c2qzsp; 9dlthu/ q-8dhown. All lightbulbs are identical. When the switch in the circuit is closed illuminating bulb #4, which other dqctq-u89sp/ 2lz dh; bulb(s) also become brighter?

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

13.38: Five identical light bulbs are connected into a cir,deort mq 4 ,v,kvj02rcuit as shown. All wires are i,2korq 0v, e4mdr,tvj deal with no resistance, and the ideal battery has emf ξ . When the switch S in the circuit is closed, aside from bulb #5, which of the other bulbs brighten?

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.10: For the circuit shown, the three light bulbs have identical resistancee /rk)jk5ubch24*uymjkqf( ok (,3g e, the battery is ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that either become dimmer or 23ko jyc5g*(kmuk4fqeh k(, ub )/jre go out completely when the switch, S, in the circuit is closed?

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.39: For the circuit shown nh8r elo5),jk, the four lightbulbs have identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one of the following choices correctly describes what happens to the magnitude of the5)lr8khjno , e current at the point labeled P and to the magnitude of the potential difference from Wto X?

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.31: The circuit shown has 4 id4fyf nm q//dh.entical light bulbs connected to an ideal battery. If bulb #2 were rem 4.d/ hfqfy/nmoved leaving an open circuit there, what happens to the voltage across both bulb #1 and from Q to X?

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

07.30: In the following circuit diagram, which one of the bulbs will not light+cg/ j8oy 0vyl? /y0jc+8g v oly

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

07.33: For the circuit shown, the ammeter reading is initially I. The switc6fus lg+ek3a ) ,8ejuth in the circuit then is closed. 6e+la)uguktfej ,8s 3Consequently:

A. The ammeter reading decreases.

B. The potential difference between E and F increases.

C. The potential difference between E and F stays the same.

D. Bulb #3 lights up more brightly.

E. The power supplied by the battery decreases.

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.38: For the circuit shown, the four li mepccj z *-de nyy6alt; j13.cq5e0:ight bulbs have identical resistance, all wires have zero rep5idmjacc0cqz3j1 ey.yne; t el*:-6sistance, and the battery is assumed to be ideal with emf ξ . When the switch, S, in the circuit is closed, a wire of zero resistance is added into the circuit. Which of the light bulbs will be dimmer after the switch is closed?

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.22: For the circuit shown, allhvr0xn6 6ldz 9xf k;z, three lightbulbs have the same resistance. The battery and wires have no resistance. What v6hxrk d9, n0lzzx ;f6is the proper ranking of the bulbs’ brightness?

A. $Bulb 1 = Bulb 2 = Bulb 3$

B. $Bulb 3 < Bulb 2 = Bulb 1$

C. $Bulb 2 < Bulb 1 < Bulb 3$

D. $Bulb 1 = Bulb 2 < Bulb 3$

E. $Bulb 1 = Bulb 3 < Bulb 2$

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